FLSUN
S1 Pro
Based on 59 Reddit mentions
$1499.00
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Most discussed features
Sentiment summary across the product areas Reddit users mention most.
Reddit mentions
Original Reddit posts and comments behind this analysis.
S1 OR S1 PRO
AI to the rescue The FLSUN S1 and S1 Pro are both high-speed delta 3D printers, and they share many core features. However, the S1 Pro is an updated version that brings several key improvements and refinements. Think of it less as a complete overhaul and more as an "S1.5" with enhancements that impr
...Iostminds in r/Flsun_official
September 4, 2025 3:36 AM
3
FLSUN S1 - FREE
I have an S1 pro and I'm feeling the same. Not quite giving it away yet, but I'm on effector #3 and it worked all of 1 second before getting a clog that required full disassembly. FLSUN support hasn't responded to my email (it's been weeks). Printer has been down probably 8.5 of the ten months I've
...Srcc in r/FLSUNDelta
November 10, 2025 5:03 PM
3
This thing 😡 (S1)
the extruder can be opened and cleared of clog, done it a couple of times. The investment in time to do it seems a reason to stop using my S1 Pro. I figure the parts alone is worth something. When they were available, I bought a new extruder as a spare. shame on FLSUN for not doing the support for a
...Greggs3d in r/FLSUNDelta
February 24, 2026 6:09 AM
1
Extreme stringing with PETG on FLSUN S1 Pro. Any tips besides a heat gun?
Thank you for the tip. I've kept it dry, and even dried it before prining. Unlike PLA, which degrades due to moisture, PETG can be restored by drying. I used the same filament to print the wheel on a different printer (at 10:35 in the video), and there was much much less stringing - barely any. My t
...vgergo in r/FLSUNDelta
March 29, 2026 4:44 PM
1
FLSUN S1 Pro Hotend Upgrade
Did you find a replacement? I have a S1 Pro and it seems like the three way split in the filament path (not in the nozzle but the actual hotend) has made two of my FLSun hotends go bad. Tempted to drill out the split and see if that improves it but wanted to see if you'd made a modification. Also u/
...Hopeful-Self6595 in r/FLSUNDelta
November 1, 2025 6:16 PM
1
Give me your opinions on the FLSun S1
DO NOT BUY THE DAMN S1. THE PRINTER SUCKS, THE COMPANY SCAMS YOU AND ITS A WASTE OF MONEY. I bought my first FLSUN back in December and it was the t1. It broke a couple months in. The replacement t1 pro broke in a month and the so called upgrade the s1 pro has been defective since arrival. I’m buyin
...OwnBat7882 in r/Flsun_official
November 26, 2025 12:17 AM
1
Printing on the T1 MAX !!!
I thought that too. But I have proper slicer profiles now and the T1 Pro is wild good and fast! I hear you though, it was a journey to get it really working lol. That said it has the best cooling and best melting system out there. I have every printer from every company. I love the V400's from Flsun
...blownglasspendants in r/Flsun_official
June 26, 2025 8:28 AM
1